【摘要】 在发电厂,高辐射涂层广泛应用于锅炉的管道,但适合于该涂层使用的优质胶粘剂一直是一个瓶颈。研制出具有低腐蚀、高粘度、耐高温特点的胶粘剂,对提高高辐射涂层的综合性能至关重要。众所周知,无机磷酸盐胶粘剂拥有有机胶和硅溶胶不可比拟的耐高温、低固化收缩率等优点,本文简述了磷酸盐胶粘剂的制备原料及工艺,试验中以磷酸二氢铝为主要成分,同时加入pH调节剂、缓蚀剂、催干剂、增稠剂等,制备出了一种可以在24h内表面干燥、对金属表面有较小的腐蚀、耐温800℃、高粘性的胶粘剂。更多还原

【Abstract】 In power plants,high radiation coating is widely used in boiler tubes,however,it’s a big bottleneck for the high radiation to use in the coating.Development of adhesive,with low corrosion,high viscosity and high temperature resistant characteristics to improve the comprehensive performance of high radiation coating is very important.As everyone knows,inorganic phosphate coating is superior to organic gel and silica sol in high-temperature and low curing shrinkage.The high viscosity coatings with phosphate bonded di-hydrogen aluminum as the main ingredient are prepared.By adding agents for adjusting pH,corrosion inhibitors,driers,thickeners,we have coatings whose surface can dry within 24 h,get a low corrosion on the metal by resisting to the temperature of 800 ℃.更多还原